205053 has 4 divisors (see below), whose sum is σ = 273408. Its totient is φ = 136700.

The previous prime is 205043. The next prime is 205063. The reversal of 205053 is 350502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (205043) and next prime (205063).

It is a cyclic number.

It is not a de Polignac number, because 205053 - 2⁸ = 204797 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34173 + ... + 34178.

It is an arithmetic number, because the mean of its divisors is an integer number (68352).

2²⁰⁵⁰⁵³ is an apocalyptic number.

It is an amenable number.

205053 is a deficient number, since it is larger than the sum of its proper divisors (68355).

205053 is an equidigital number, since it uses as much as digits as its factorization.

205053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68354.

The product of its (nonzero) digits is 150, while the sum is 15.

The square root of 205053 is about 452.8277818332. The cubic root of 205053 is about 58.9687663851.

Adding to 205053 its reverse (350502), we get a palindrome (555555).

The spelling of 205053 in words is "two hundred five thousand, fifty-three".